Is there any reason not to go to bigger injectors besides more heat and smoke, I know I need bigger DV's but can I add DV's and injectors and adjust my fuel plate to keep egt's in check or will I need a different turbo. will it run basicly the same but with more power on the top??? Thanks in advance Matt

 

boughtadodge:
I have the 370's, and I like them. the disadvantage is that there is a rough spot between 1100 and about 1300 RPM. I shift gears if the spot is too troublesome, for example, with the TC locked and running slow.

I would go 370 again, whever. I like them.
george

 

Set your timing to 19 degrees.

Don~

 

I wouldn't run more than 17 deg's seeing your set up and being a auto. IMHO

 

my timing was set around 17.5-18 and I reset it to 15 I need more power on take of with the tighter converter and 8000 ft in elevation and I called piers and he said to set it there What would I benifit going to 19* wouldn't that be hard on the head gasket How much would I gain power wise? Matt

 

smokee do you have the delivery valves??

 

I have messed with a few trucks here ( Texas ) and we tried a whole bunch of settings on the smaller pumps for best drivability/power. I finally settled on the 19 degrees.

Example was a 94 truck ( 5 speed ) Running 370's and an HX40. Timing was around 15-16 degree mark several times and the diesel only HP was Dyojetted at 430-440 range. Stumble and high rpm pop was still there.

We cranked in more timing ( 19 degrees ) and the stumble and high rpm pop was gone. HP climbed to 476. Same Dynojet.

We tried everything from 13-22 degrees. 19 was the best compromise. Auto tranny and high altitide may differ.

BTW, the DV's were and still are the stock babies that came in the pump.

Don~

 

I forgot to say that the increase in timing is not going to make things any easier on the head gasket in any 12 valve. Most live a long life, but the head gaskets are known to blow at stock timing levels in the older 12 valves.

Don~

 

Don M do you know what the plunger lift for 19 degrees is my chart only goes to 16 also how bad is the noise at that setting. Matt

 

Don I forgot to ask how does that change your torque is the power at the same rpm's or does it raise it How about smoke is there more or less

 

Less smoke. Less TQ. More HP.

You will have to extrapolate the plunger lift unless you have a light/transducer to measure your progress.

 

Don not to sound dumb but could you explain this a little clearer I do have a snap sp-500 timing gauge also I have the pulse adapter for a timing light I use it on the old ford diesels. Matt

 

I have the 370's in my truck with the laser cut DV's and 17.5* of timing. I just put a set of 3k gov springs in. Now that I have the Gov springs I can not get the truck to run right. I was wondering if someone on here could help me out. Are the Laser Cut DV's to big to run in a 95 pump. I am not sure what horsepower my truck is at. I have also been hearing that I should set my timing up to 19* but I would like more power on the bottom end than at high RPM. Could anyone help me out with my problems.

 

Don ..

19* ?? ..... I like 20-22* ... yruso ... the # 6 plate is tooo mild for what you are running ... go with a #4 .... gut your AFC ...

 

I don't know what is going on with my truck. It runs like crap from 1100-2k RPM's. it does fine under WOT but when trying to drive around it lopes and jerks. I was told the laser cut DV's will help so thats my next step along with timming the truck at 16 unless there is a reason I should go higher. "stock HG"
DM01